Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC1997GRAND PRIX GTP, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 7 (BODY CONTROL MODULE)
1997 Pontiac Grand Prix GTP, 4D Sedan
Section 7 (Body Control Module)
1997 Pontiac Grand Prix GTP, 4D SedanSECTION Section 7 (Body Control Module)
WARNING: This page is about a different car, the 1997 Buick Regal and 1997 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- Description & Operation
- BCM Programming
- BCM DTC Definition
- Diagnosis & Repair
- Notes
- Scan Tool Does Not Communicate With Class 2 Data Line
- BCM Diagnostic System Check
- DTC B0603, BCM Internal Memory Malfunction (Write Error)
- DTC B0605, BCM Internal Memory Malfunction (Checksum Error)
- DTC B0608, BCM Power MODING Error
- DTC B0702, Rap Relay Circuit (Short To Ground Or Open)
- DTC B0703, Rap Relay Circuit (Short To Voltage)
- DTC B0807, Battery For Door Lock Circuit (Open)
- DTC B0812, Courtesy Lights Battery Feed Circuit (Open)
- DTC B0823, Doors G201 Circuit (Open)
- DTC B0828, Theater Dimming Ground Circuit (Open)
- DTC B1802, Courtesy Lights Circuit (Short To Ground)
- DTC B2202, Driver's Door Unlock Circuit (Short To Ground Or Open)
- DTC B2203, Driver's Door Unlock Circuit (Short To Voltage)
- DTC B2403, FOGLIGHT Switch Circuit (Short To Voltage)
- DTC B2417, DRL Control Module Circuit (Short To Ground Or Open)
- DTC B2418, DRL Control Module Circuit (Short To Voltage)
- DTC B2452, Theater Dimming No. 1 Circuit (Short To Ground Or Open)
- DTC B2453, Theater Dimming No. 1 Circuit (Short To Voltage)
- DTC B2457, Theater Dimming No. 2 Circuit (Short To Ground Or Open)
- DTC B2458, Theater Dimming No. 2 Circuit (Short To Voltage)
- DTC B2528, Horn Relay Circuit (Short To Voltage)
- DTC B2721, Pass-Key(R) Detection Circuit (Out Of Range)
- DTC B2722, Pass-Key(R) Detection Circuit (Short To Ground)
- DTC B2723, Pass-Key(R) Detection Circuit (Short To Voltage Or Open)
- DTC B2735, Pass-Key(R) Programming Mode Active
- DTC B2739, Key-In-Ignition Fault
- DTC B2802, RFA Link Circuit (Short To Ground)
- DTC B2803, RFA Link Circuit (Short To Voltage)
- DTC B2805, RFA Programming/Diagnostic Mode Message Not Received
- DTC B2806, RFA Link Parity Error
- DTC U1016, Pcm Class 2 Source Id 10
- DTC U1040, EBTCM Class 2 Source Id 28
- DTC U1064, Loss Of BCM Source Id 40
- DTC U1096, Instrument Panel Class 2 Source Id 60
- DTC U1255, Loss Of Class 2 Serial Data Fault (General)
- DTC U1300, Class 2 Circuit (Short To Ground)
- DTC U1301, Class 2 Circuit (Short To Voltage)
- Removal & Installation
- Wiring Diagram
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.